Science

Friday, 6 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Titan
Its surface is highly geologically diverse.
It is covered in lighter and darker areas: seas, lakes, bays, islands, rivers, canals, mountain ridges, valleys, fjords, and dunes.
Large Magellanic Cloud
Between the Large and Small Magellanic Clouds, there is a belt of hydrogen that connects both galaxies.
There are numerous stars inside the gas belt, concentrating in two places in the belt in the so-call ...
Tears
There are three types of tears.
They are: Basal tears (protecting and nourishing cornea) Reflex tears (glands' reaction to irritating compounds, like smoke) Emotional tears (produced in response to various emotional states)
Brain
Thanks to the word patterns stored in memory, a person is able to read the text in which the letters have been mixed.
It is enough for the first and last letters of a word to be in the correct place.
Brain
The brain produces about 25 watts of energy.
It does not happen that the brain does not function even for a nanosecond. It constantly analyzes, t ...
Cosmos
The largest mountain in the Solar System is Olympus Mons.
This extinct volcano rises above the Martian surface to a height of about level. The diameter of the ...
Earth
It is similar with the oceans - depending on the divisions, there are from three to five of them.
We distinguish oceans: Pacific, Atlantic, Indian, Southern, and Arctic. The basic ones are considere ...
Cosmos
The observable universe is estimated to be 13.8 billion years old.
The limit of error in the calculation is 21 million years.
Large Magellanic Cloud
In the Marvel comics, the Large Magellanic Cloud is the heart of the Kree empire.
Earth
The lithosphere is the outermost covering of the Earth.
It is made of tectonic plates that are constantly moving. Earthquakes may occur in zones where these ...